*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    position: relative;
}
li{
    list-style: none;
}
text{
    text-decoration: none;
}
.box{
    width: 800px;
    margin: auto;
}
/* 标题表头 */
.top{
    width: 800px;
    height: 50px;
    display: flex;
}
/* 图书管理 */
.top h3{
    margin-top: 20px;
}
/* 添加按钮 */
.top .add{
    width: 60px;
    height: 35px;
    background-color: #529acb;
    color: white;
    border: #529acb;
    margin-left: 660px;
    border-radius: 5px;
    margin-top: 10px;
}
/* 表格 */
table{
    width: 800px;
    text-align: center;
}
/* 表 列 */
table td{
    width: 120px;
    height: 50px;
}
/* 表头部分 */
thead{
    width: 800px;
    height: 50px;
    background-color: #939ca7;
    color: white;
}
/* 表头 行 */
thead th{
    width: 800px;
    height: 50px;
}

/* 添加模态框 */
.addmtk{
    width: 500px;
    height: 500px;
    border-radius: 2px;
    background-color: rgb(255, 255, 255);
    position: absolute;
    top: 0px;
    left: 200px;
     display: none;
}
/* 模态框中心名字 */
.addmtk .mtktop{
    width: 500px;
    height: 40px;
    background-color: #f0f3f7;
}
/* 模态框中心标题 */
.addmtk .mtktop .s1{
    margin-left: 200px;
    line-height: 40px;
    font-size: 20px;
    color: black;
}
/* 模态框右上角x号 */
.addmtk .mtktop .mtkx{
    width: 20px;
    height: 20px;
    font-size: 18px;
    color: #666;
    background-color: #00000000;
    margin-left: 175px;
    border: 0px solid black;
}
/* 模态框填写内容部分 */
.addmtk .mtkbody {
    width: 450px;
    height: 300px;
    margin: auto;
    /* background-color: black; */
}
/* 模态框书名部分 */
.addmtk .mtkbody .bookname .p1{
    margin-top: 25px;
    color: #666;
}
.addmtk .mtkbody .bookname .name{
    width: 400px;
    height: 40px;
    margin-top: 7px;
    border: 1px solid #666;
    border-radius: 4px;
}
/* 模态框作者部分 */
.addmtk .mtkbody .bookzuozhe .p1{
    margin-top: 25px;
    color: #666;
}
.addmtk .mtkbody .bookzuozhe .zuozhe{
    width: 400px;
    height: 40px;
    margin-top: 7px;
    border: 1px solid #666;
    border-radius: 4px;
}
/* 模态框出版社部分 */
.addmtk .mtkbody .bookchu .p1{
    margin-top: 25px;
    color: #666;
}
.addmtk .mtkbody .bookchu .chu{
    width: 400px;
    height: 40px;
    margin-top: 7px;
    border: 1px solid #666;
    border-radius: 4px;
}
.addmtk .xia{
    width: 500px;
    height: 100px;
    display: flex;
    margin: auto;
}
.addmtk .xia .qu{
    width: 120px;
    height: 45px;
    text-align: center;
    margin-left: 60px;
    border: #666 1px solid;
    border-radius: 5px 0 0 5px;
    background-color: white;
    color: black;
}
.addmtk .xia .bao{
    width: 120px;
    height: 45px;
    text-align: center;
    margin-left: 50px;
    border-radius: 0 5px 5px 0;
    background-color: #529acb;
    color: white;
    border: #529acb 1px solid;
}

